/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.dromara.hmily.tac.sqlparser.model.segment.dml.pagination.limit;

import lombok.Getter;
import lombok.RequiredArgsConstructor;
import org.dromara.hmily.tac.sqlparser.model.segment.HmilySegment;
import org.dromara.hmily.tac.sqlparser.model.segment.dml.pagination.HmilyPaginationValueSegment;

import java.util.Optional;

/**
 * Limit segment.
 */
@RequiredArgsConstructor
@Getter
public final class HmilyLimitSegment implements HmilySegment {
    
    private final int startIndex;
    
    private final int stopIndex;
    
    private final HmilyPaginationValueSegment offset;
    
    private final HmilyPaginationValueSegment rowCount;
    
    /**
     * Get offset.
     * 
     * @return offset
     */
    public Optional<HmilyPaginationValueSegment> getOffset() {
        return Optional.ofNullable(offset);
    }
    
    /**
     * Get row count.
     *
     * @return row count
     */
    public Optional<HmilyPaginationValueSegment> getRowCount() {
        return Optional.ofNullable(rowCount);
    }
}
